provide static popular sites for first run

components/ntp_tiles/most_visited_sites_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/ntp_tiles/most_visited_sites.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <ostream>
@@ skipping 189 matching lines @@
 class PopularSitesFactoryForTest {
  public:
   PopularSitesFactoryForTest(
       bool enabled,
       sync_preferences::TestingPrefServiceSyncable* pref_service)
       : prefs_(pref_service),
         url_fetcher_factory_(/*default_factory=*/nullptr),
         url_request_context_(new net::TestURLRequestContextGetter(
             base::ThreadTaskRunnerHandle::Get())),
         worker_pool_owner_(/*max_threads=*/2, "PopularSitesFactoryForTest.") {
+    PopularSitesImpl::RegisterProfilePrefs(pref_service->registry());
     if (enabled) {
-      PopularSitesImpl::RegisterProfilePrefs(pref_service->registry());
-
       prefs_->SetString(prefs::kPopularSitesOverrideCountry, "IN");
       prefs_->SetString(prefs::kPopularSitesOverrideVersion, "7");
 
       url_fetcher_factory_.SetFakeResponse(
           GURL("https://www.gstatic.com/chrome/ntp/suggested_sites_IN_7.json"),
           R"([{
                 "title": "PopularSite1",
                 "url": "http://popularsite1/",
                 "favicon_url": "http://popularsite1/favicon.ico"
               },
@@ skipping 582 matching lines @@
                   MatchesTile("Site 4", "https://www.site4.com/",
                               NTPTileSource::TOP_SITES),
                   MatchesTile("Site 1", "https://www.site1.com/",
                               NTPTileSource::POPULAR),
                   MatchesTile("Site 2", "https://www.site2.com/",
                               NTPTileSource::POPULAR)));
 }
 
 }  // namespace
 }  // namespace ntp_tiles